Mitsubishi Electric CITY MULTI PLFY-EP NEMU-E Series User manual

Air-Conditioners For Building Application
INDOOR UNIT
PLFY-EP·NEMU-E
PLFY-P·NEMU-E
English
INSTALLATION MANUAL
For safe and correct use, read this manual and the outdoor unit installation manual thoroughly before installing
the air-conditioner unit.
FOR INSTALLER
MANUEL D’INSTALLATION
Avant d’installer le climatiseur, lire attentivement ce manuel, ainsi que le manuel d’installation de l’appareil exté-
rieur pour une utilisation sûre et correct.
POUR L’INSTALLATEUR
Français
MANUAL DE INSTALACIÓN
Para un uso seguro y correcto, lea detalladamente este manual de instalación antes de montar la unidad de
aire acondicionado.
PARA EL INSTALADOR
Español
RG79F091K01_EN.indd 1 2/23/2016 10:27:08 AM

2
2.1. Check the indoor unit accessories (Fig. 2-1)
The indoor unit should be supplied with the following accessories.
Accessory name Q’ty
1Installation template 1
2Washers (with insulation)
Washers (without insulation)
4
4
3
Pipe cover (for refrigerant piping joint)
small diameter
large diameter
1
1
4Band (large)
Band (small)
6
2
5Drain socket 1
6Insulation 1
Before installing the unit, make sure you read all the “Safety precautions”.
Please report to your supply authority or obtain their consent before
connecting this equipment to the power supply system.
1. Safety precautions
2. Installing the indoor unit
Contents
1. Safety precautions.....................................................................................2
2. Installing the indoor unit ............................................................................2
3. Installing the refrigerant piping ..................................................................4
4. Drainage piping work.................................................................................5
Warning:
Describes precautions that must be observed to prevent danger of injury or
death to the user.
Caution:
Describes precautions that must be observed to prevent damage to the unit.
After installation work has been completed, explain the “Safety Precautions,” use, and
maintenance of the unit to the customer according to the information in the Operation
Manual and perform the test run to ensure normal operation. Both the Installation
Manual and Operation Manual must be given to the user for keeping. These manuals
must be passed on to subsequent users.
: Indicates an action that must be avoided.
: Indicates that important instructions must be followed.
: Indicates a part which must be grounded.
:Indicates that caution should be taken with rotating parts.
: Indicates that the main switch must be turned off before servicing.
: Beware of electric shock.
: Beware of hot surface.
: At servicing, please shut down the power supply for both the Indoor and
Outdoor Unit.
Warning:
Carefully read the labels afxed to the main unit.
Caution:
Appliances not accessible to the general public.
Install the indoor unit at least 2.4 m (94-1/2 inch) above oor or grade level.
Warning:
• Ask the dealer or an authorized technician to install the air conditioner.
• Install the unit at a place that can withstand its weight.
• Use the specied cables for wiring.
• Use only accessories authorized by Mitsubishi Electric and ask the dealer or
an authorized technician to install them.
• Do not touch the heat exchanger ns.
• Install the air conditioner according to this Installation Manual.
• Have all electric work done by a licensed electrician according to local regula-
tions.
• If the air conditioner is installed in a small room, measures must be taken to
prevent the refrigerant concentration from exceeding the safety limit even if
the refrigerant should leak.
Caution:
•
Do not use the existing refrigerant piping, when use R410A refrigerant.
• Use ester oil, either oil or alkylbenzene (small amount) as the refrigerator oil to
coat ares and ange connections, when use R410A refrigerant.
• Do not use the air conditioner where food, pets, plants, precision instruments,
or artwork are kept.
• Do not use the air conditioner in special environments.
• Ground the unit.
• Install an leak circuit breaker, as required.
• Use power line cables of sufcient current carrying capacity and rating.
• Use only a circuit breaker and fuse of the specied capacity.
• Do not touch the switches with wet ngers.
• Do not touch the refrigerant pipes during and immediately after operation.
• Do not operate the air conditioner with the panels and guards removed.
• Do not turn off the power immediately after stopping operation.
• The cut face punched parts may cause injury by cut, etc. The installers are
requested to wear protective equipment such as gloves, etc.
• When installing or relocating, or servicing the air conditioner, use only the
specied refrigerant (R410A) to charge the refrigerant lines. Do not mix it
with any other refrigerant and do not allow air to remain in the lines.
If air is mixed with the refrigerant, then it can be the cause of abnormal
high pressure in the refrigerant line, and may result in an explosion and
other hazards.
The use of any refrigerant other than that specied for the system will cause
mechanical failure or system malfunction or unit breakdown. In the worst
case, this could lead to a serious impediment to securing product safety.
Note:
The phrase “Simple MA Remote controller” in this installation manual refers to the PAC-YT53CRAU.
The phrase “Wired remote controller” in this installation manual refers only to the PAR-32MAA.
If you need any information for the other remote controller, please refer to either the installation manual or initial setting manual which are included in these box.
5. Electrical work ...........................................................................................6
6. Installing the grille.................................................................................... 11
7. Test run....................................................................................................15
1 2
3 4
5 6
Fig. 2-1
RG79F091K01_EN.indd 2 2/23/2016 10:27:08 AM

3
2. Installing the indoor unit
2.2. Ceiling openings and suspension bolt installation
locations (Fig. 2-2)
Caution:
Install the indoor unit at least 2.4 m, 94-1/2 inch above oor or grade level.
For appliances not accessible to the general public.
• Usingtheinstallationtemplate(topofthepackage)andthegauge(suppliedasan
accessory with the grille), make an opening in the ceiling so that the main unit can
be installed as shown in the diagram. (The method for using the template and the
gauge is shown.)
* Before using, check the dimensions of template and gauge, because they
changeduetouctuationsoftemperatureandhumidity.
* The dimensions of ceiling opening can be regulated within the range shown in
Fig. 2-2; so center the main unit against the opening of ceiling, ensuring that the
respective opposite sides on all sides of the clearance between them becomes
identical.
• UseM10(3/8")suspensionbolts.
* Suspensionboltsaretobeprocuredattheeld.
• Installsecurely,ensuringthatthereisnoclearancebetweentheceilingpanel&
grille,andbetweenthemainunit&grille.
AOuter side of main unit EGrille
BBolt pitch FCeiling
CCeiling opening GMulti function casement (option)
DOuter side of Grille HEntire periphery
* Note that the space between ceiling panel of the unit and ceiling slab, etc. must be
10to15mm,25/64to19/32inch.
* Whentheoptionalmulti-functionalcasementisinstalled,add135mm,5-5/16inch
tothedimensionsmarkedonthegure.
(mm, inch)
Models A B
EP08-18
P08-30 241,9-1/2 258,10-3/16
EP24-48
P36-48 281,11-1/16 298,11-3/4
2.3. Refrigerant and drainage piping locations of in-
door unit
Theguremarkedwith*inthedrawingrepresentthedimensionsofthemainunit
excluding those of the optional multi function casement. (Fig. 2-3)
ADrain pipe
BCeiling
CGrille
DRefrigerant pipe (liquid)
ERefrigerant pipe (gas)
FMain unit
* Whentheoptionalmulti-functionalcasementisinstalled,add135mm,5-5/16inch
tothedimensionsmarkedonthegure.
(inch)
Models C D
(E)P08-18 33-1/32
(E)P24-48 3-1/32
Fig. 2-3
Fig. 2-2
5-11/16
31-5/16 B
37-3/8 D
5-11/16
25-31/32 B
(25/32) (25/32)
33-1/16 A
37-3/8 D
7-19/32
8-3/4
5-7/32
3-1/8
5-11/16
5-11/16
F
E
G
5-5/16
11/16+3/16
0
* B
A
F
E
11/16
1-9/16
+3/16
0
*
4-1/8
H
*5-17/32
*6-11/16
3-1/8
7-1/2 1/4
D
C
2-3/8 14-1/16 10-11/16
D
E
F
B
A
C
Floor
Min.19-11/16
Min.94-1/2
*1-31/32
to2-3/4
23-13/16
31-7/8
A
B
1 2
HI
J
C
D E FG
Fig. 2-4
DCeiling
ERafter
FBeam
GRoof beam
HUseinsertsratedat100-150kg,221-
331 lbs each (procure locally)
ISuspensionboltsM10(3/8”)(procure
locally)
JSteel reinforcing rod
AMain unit
BGrille
CPillar
(inch) 2.4. Suspension structure (Give site of suspension
strong structure) (Fig. 2-4)
• Theceilingworkdiffersaccordingtotheconstructionofthebuilding.Buildingcon-
structors and interior decorators should be consulted for details.
(1) Extent of ceiling removal: The ceiling must be kept completely horizontal and the
ceiling foundation (framework: wooden slats and slat holders) must be reinforced
in order to protect the ceiling from vibration.
(2) Cut and remove the ceiling foundation.
(3) Reinforce the ends of the ceiling foundation where it has been cut and add ceiling
foundation for securing the ends of the ceiling board.
(4) When installing the indoor unit on a slanted ceiling, attach a pillar between the
ceiling and the grille and set so that the unit is installed horizontally.
1Wooden structures
• Usetiebeams(singlestoriedhouses)orsecondoorbeams(2storyhouses)as
reinforcing members.
• Woodenbeamsforsuspendingairconditionersmustbesturdyandtheirsidesmust
beatleast60mm,2-3/8inchlongifthebeamsareseparatedbynotmorethan
900mm,35-7/16inchandtheirsidesmustbeatleast90mm,3-9/16inchlongif
thebeamsareseparatedbyasmuchas1800mm,70-7/18inch.Thesizeofthe
suspensionboltsshouldbeø10(3/8”).(Theboltsdonotcomewiththeunit.)
2Ferro-concrete structures
Secure the suspension bolts using the method shown, or use steel or wooden hang-
ers, etc. to install the suspension bolts.
(inch)
32-27/32to35-13/16C
25/32to1-25/32
25/32to
1-25/32
25/32to1-25/32
25/32to
1-25/32 32-27/32to35-13/16C
RG79F091K01_EN.indd 3 2/23/2016 10:27:09 AM

4
A=11/16
+3/10 0
11/16
4-1/8 (9-7/16)
+8/16 0
A
B
AA
C
D
D
E
F
C
C
G
B
B
2. Installing the indoor unit
2.5. Unit suspension procedures (Fig. 2-5)
Suspend the main unit as shown in the diagram.
Figures given in parentheses represent the dimensions in case of installing optional
multi function casement.
1. In advance, set the parts onto the suspension bolts in the order of the washers
(with insulation), washers (without insulation) and nuts (double).
• Fitthewasherwithcushionsothattheinsulationfacesdownward.
• Incaseofusingupperwasherstosuspendthemainunit,thelowerwashers(with
insulation) and nuts (double) are to be set later.
2. Lift the unit to the proper height of the suspension bolts to insert the mounting
plate between washers and then fasten it securely.
3. When the main unit cannot be aligned against the mounting hole on the ceiling, it
is adjustable owing to a slot provided on the mounting plate.
• MakesurethatAisperformedwithin17-22mm,11/16-7/8inch.Damagecould
result by failing to adhere to this range. (Fig. 2-6)
Caution:
Use the top half of the box as a protective cover to prevent dust or debris from
getting inside the unit prior to installation of the decorative cover or when ap-
plying ceiling materials.
2.6. Conrming the position of main unit and
tightening the suspension bolts (Fig. 2-7)
• Usingthegaugeattachedtothegrille,ensurethatthebottomofthemainunitis
properlyalignedwiththeopeningoftheceiling.Besuretoconrmthis,otherwise
condensation may form and drip due to air leakage, etc.
• Conrmthatthemainunitishorizontallylevelled,usingaleveloravinyltubelled
with water.
• Aftercheckingthepositionofthemainunit,tightenthenutsofthesuspensionbolts
securely to fasten the main unit.
• Theinstallationtemplate(topofthepackage)canbeusedasaprotectivesheet
to prevent dust from entering the main unit when the grilles are left unattached for
a while or when the ceiling materials are to be lined after installation of the unit is
nished.
Note:
Asforthedetailsoftting,refertotheinstructionsgivenontheInstallationtemplate.
(top of the package)
Fig. 2-5
Fig. 2-6
Fig. 2-7
ASuspension bolt
BCeiling
CNut
DWasher (with insulation)
EMounting plate
FWasher (without insulation)
GCheck using the Installation gauge
AMain unit
BCeiling
CGauge
DCeiling opening dimensions
AMain unit
BCeiling
CInstallation template
(top of the package)
Min.1-3/16
A
C
B
3. Installing the refrigerant piping
3.1. Connecting pipes (Fig. 3-1)
• Whencommerciallyavailablecopperpipesareused,wrapliquidandgaspipes
withcommerciallyavailableinsulationmaterials(heat-resistantto100°C,212°F
ormore,thicknessof12mm,1/2inchormore).
• Applythinlayerofrefrigerantoiltopipeandjointseatingsurfacebeforetightening
arenut.
• Use2wrenchestotightenpipingconnections.
• Userefrigerantpipinginsulationprovidedtoinsulateindoorunitconnections.Insulate
carefully.
• Afterconnectingtherefrigerantpipingtotheindoorunit,besuretotestthepipe
connections for gas leakage with nitrogen gas. (Check that there is no refrigerant
leakage from the refrigerant piping to the indoor unit.)
• Usearednutinstalledtothisindoorunit.
• Incaseofreconnectingtherefrigerantpipesafterdetaching,makethearedpart
of pipe re-fabricated.
AFlare cutting dimensions
Copper pipe O.D.
(mm, inch)
Flare dimensions
[A dimensions (mm, inch)
[6.35,1/4 8.7-9.1,11/32-23/64
[9.52,3/8 12.8-13.2,1/2-33/64
[12.7,1/2 16.2-16.6,41/64-21/32
[15.88,5/8 19.3-19.7,49/54-25/32
[19.05,3/4 22.9-23.3,15/16-61/64
Fig. 3-1
A B
C
D
A
R1/64–R1/32
45°±2°
90°±0.5°
BRefrigerantpipesizes&Flarenuttighteningtorque
Liquid pipe Gas pipe Flare nut O.D.
Pipe size
(mm)
(inch)
Tightening
torque (N.m)
(ft. Ibs)
Pipe size
(mm)
(inch)
Tightening
torque (N.m)
(ft. Ibs)
Liquid pipe
(mm)
(inch)
Gas pipe
(mm)
(inch)
(E)P08,(E)P12,(E)P15,(E)P18 ODø6.35
1/4
14-18
10-13
ODø12.7
1/2
49-61
35 - 44
17
43/64
26
1-1/32
(E)P24,(E)P30,(E)P36,(E)P48 ODø9.52
3/8
34 - 42
25-30
ODø15.88
5/8
68-82
49-59
22
7/8
29
1-9/64
(inch)
CApplyrefrigeratingmachineoilovertheentireareseatsurface.
RG79F091K01_EN.indd 4 2/23/2016 10:27:09 AM

5
B
C
1/4
1-3/16 1-3/16
9/32
9/32
23/32
A AH H
GG
D E
C K
FF
C
J
I
1
AB
K
B
F
D
F F
H
I
G
EDD
L
M
C
FJ
2
3
A
D
E
C
B
F
B, C
F
G
H
IJ
3.2. Indoor unit (Fig. 3-2)
Heat insulation for refrigerant pipes:
1 Wrap the enclosed large-sized pipe cover around the gas pipe, making sure that
the end of the pipe cover touches the side of the unit.
2 Wrap the enclosed small-sized pipe cover around the liquid pipe, making sure that
the end of the pipe cover touches the side of the unit.
3 Secure both ends of each pipe cover with the enclosed bands. (Attach the bands
20mm,25/32inchfromtheendsofthepipecover.)
3. Installing the refrigerant piping
4. Drainage piping work
4.1. Drainage piping work (Fig. 4-1)
• Theindoorpartsofthedrainpipeshouldbewrappedwithpolyethylenefoaminsula-
tionmaterials(specicgravityof0.03,thicknessof9mm,11/32inchormore).
• UseVP25(O.D.ø32mm,1-1/4inchPVCTUBE)fordrainpipingandprovide1/100
or more downward slope.
• BesuretoconnectthepipingjointsusingaPVCtypeadhesive.
• Observethegureforpipingwork.
• Usetheincludeddrainhosetochangetheextractiondirection.
1Correct piping GMake the piping size large for grouped pip-
ing.
2Wrong piping
3Grouped piping H Downwardslope(1/100ormore)
A Insulation(9mm,11/32inchormore) I O.D.ø38mm,1-1/2inchPVCTUBEfor
grouped piping
 (9mm,11/32inchormoreinsulation)
B Downwardslope(1/100ormore)
CSupport metal
D O.D.ø32mm,1-1/4inchPVCTUBE J Upto850mm,33-7/16inch
EMake it as large as possible
 (about100mm,3-15/16inch)
KAir bleeder
LRaised
FIndoor unit MOdor trap
1. Connect the drain socket (supplied with the unit) to the drain port. (Fig. 4-2)
(FixthetubeusingPVCadhesivethensecureitwithaband.)
2.Installalocallypurchaseddrainpipe(PVCpipe,O.D.ø32mm,1-1/4inch).
(FixthepipeusingPVCadhesivethensecureitwithaband.)
3.Checkthatdrainowssmoothly.
4. Insulate the drain port and socket with insulating material, then secure the material
with a band. (Both insulating material and band are supplied with the unit.)
5.Insulatethetubeandpipe.(PVCpipe,O.D.ø32mm,1-1/4inch)
AMain unit GDrainpipe(O.D.ø32mm,1-1/4inchPVCTUBE)
BInsulating material HInsulating material (purchased locally)
CBand ITransparentPVCpipe
DDrain port (transparent) JO.D.ø32mm,1-1/4inchPVCTUBE
(Slope1/100ormore)
EInsertion margin
FMatching KDrain socket
ARefrigerant pipe and heat
insulation
BPipe cover (large)
CPipe cover (small)
DRefrigerant pipe (gas)
ERefrigerant pipe (liquid)
FBand (large)
GCross-sectional view of
connection
HPipe
IHeat insulation
JSqueeze
Fig. 3-2
Fig. 4-1
Fig. 4-2
65 ft
Max. 6 inch
5 to 7 ft
(inch)
RG79F091K01_EN.indd 5 2/23/2016 10:27:10 AM

6
A
B
B
E
A
C
D
SR
A-A
A
A
A
13/32
13/32 - 9/16 3-5/32 - 3-29/32
M
15/32
I
G
F
H
J
K
A
N
O
13/32
13/32
15/32
P
5. Electrical work
5.1. Indoor unit
* Be sure to complete the electrical work before installing the grille.
1. Loosen the two screws securing the electrical wiring service panel at the cable
entry (power cable), and then turn the service panel to the position shown in the
diagram. (Fig. 5-1)
2. Loosen the one screw securing the electrical wiring service panel at the cable entry
(remote controller cable and indoor-outdoor connection cable), and then turn the
service panel to the position shown in the diagram. (Fig. 5-2)
3. Loosen the two screws securing the electrical box cover, then slide the cover and
remove it. (The cover may be hung temporarily.) (Fig. 5-3)
4. Route the cables into the indoor unit through the respective cable entries.
5. Connect the cables securely to the terminal boards. (Fig. 5-4, 5-5)
Note:
1. For the tightening torque of the terminal board screws, refer to the table below.
2.Leavesufcientslackinthecablessothattheelectricalboxcanbesuspended
below the unit during servicing.
6. Secure the power cable with the cable strap on the unit. (Fig. 5-4)
7. Secure the remote controller cable and indoor-outdoor connection cable with the
cable strap on the unit.
8. Installtheremovedpartsintheiroriginallocations.
AElectrical wiring service panel
BScrew
CElectrical box cover
DTemporary hook for the electrical box cover
ESlide direction of the electrical box cover
FCable entry (power cable)
GPower cable
HSecure with the cable strap
IEarth cable connection point
JCable entry (remote controller cable and indoor-outdoor connection cable)
KRemote controller cable and indoor-outdoor connection cable
LDrain pan
MLength of the cable not covered by the indoor-outdoor connection cable sheath
NCable strap
OIndoor-outdoor connection cable sheath
PIndoor-outdoor connection terminal block
Fig. 5-1
Fig. 5-2
Fig. 5-3
Fig. 5-4
Fig. 5-5
Fig. 5-6
Terminal board screw tightening torque
Tightening torque (ft.lbs)
Remote controller terminal board 0.9±0.1
Indoor-outdoor connection terminal board 0.9±0.1
Power terminal board 0.9±0.1
Never connect to a 208 - 230 VAC power supply.
• Connecting two wires on one side
is prohibited.
• Connecting three wires or more to
the same terminal is prohibited.
• Connecting wires with different
diameters is prohibited.
• Connect wires with the same diam-
eter on both sides.
WARNING
WARNING
Electrical work precautions
* Observe the following precautions for each terminal board.
Power terminal block
BesuretoconnecttheVVFcable(max.ø1/16)
in the U-shaped groove.
Note:
1. The U-shaped groove opens if you push the
screw head after the screw is loosened.
2. Be sure to insert cables that have the same
diameter.
Arrange the cables so that the
electrical wiring service panel is
not lifted up.
Remote controller terminal board
* Terminals 1 and 2 are non-polar.
Besuretoconnectthewires(1/64inch)oftheremote
controller cable at the locations marked on the diagram.
Use round solderless
terminals with insulating
sleeves for the indoor-
outdoor connection cable.
Remote controller terminal
block and indoor-outdoor
connection terminal block
Secure the remote controller cable and indoor-outdoor connec-
tion cable with the cable strap.
If only one indoor-outdoor connection cable is connected,
secure it using the cable strap according to the dimensions
marked on the diagram.
RG79F091K01_EN.indd 6 2/23/2016 10:27:11 AM

7
5. Electrical work
5.3. Types of control cables
1. Wiring transmission cables
Types of transmission cable ShieldingwireCVVSorCPEVS
Cable diameter More than 1.25 mm² (AWG16)
Length Lessthan200m(656ft)
2. M-NET Remote control cables
Types of remote control cable ShieldingwireMVVS
Cable diameter 0.5(AWG20)to1.25mm²(AWG16)
Length
Addany portion in excess of 10 m to withinthe
longestallowable transmission cable length 200
m (656 ft)
3. MA Remote control cables
Types of remote control cable 2-core cable (unshielded)
Cable diameter 0.3(AWG22)to1.25mm²(AWG16)
Length Lessthan200m(656ft)
<Exampleof"F2"calculation>
•ConditionPEFY-NMSU×4+PEFY-NMAU×1,C=8(refertorightsamplechart)
 F2=19.8×4/8+38×1/8
  =14.65
  →16Abreaker(Trippingcurrent=8×16Aat0.01s)
*3 Current sensitivity is calculated using the following formula.
G1=V2×(QuantityofType1)+V2×(QuantityofType2)+V2×(QuantityofType3)+V2×(QuantityofOthers)
+V3×(Wirelength[km])
G1 Current sensitivity
30orless 30mA0.1secorless
100orless 100mA0.1secorless
Wire thickness (mm2/AWG) V3
2.1/14 48
3.3/12 56
5.3/10 66
6000
600
60
10
Tripping Time [s]
1
0.1
0.01
1 2
Rated Tripping current (x)
3 4 6 8
C
10 20
SAMPLE
Sample chart
D
C
TB2 TB5 TB15
S12
M1
L1 L2 GR M2
AB
~230V
Total operating current of the indoor unit
Minimumwirethickness(mm²/AWG) Breaker for wiring
(NFB) Ground-fault interrupter *1
Main cable Branch Ground Capacity Fuse
F0=15Aorless*2 2.1/14 2.1/14 2.1/14 15 15 15 15 A current sensitivity *3
F0=20Aorless*2 3.3/12 3.3/12 3.3/12 20 20 20 20Acurrentsensitivity*3
F0=30Aorless*2 5.3/10 5.3/10 5.3/10 30 30 30 30Acurrentsensitivity*3
ApplytoIEC61000-3-3aboutmax.permissivesystemimpedance.
*1 The Ground-fault interrupter should support inverter circuit.
The Ground-fault interrupter should combine using of local switch or wiring breaker.
*2PleasetakethelargerofF1orF2asthevalueforF0.
F1=Totaloperatingmaximumcurrentoftheindoorunits×1.2
F2={V1×(QuantityofType1)/C}+{V1×(QuantityofType2)/C}+{V1×(QuantityofType3)/C}+{V1×(QuantityofOthers)/C}
Indoor unit V1 V2
Type 1 PLFY-NEMU,PMFY-NBMU,PEFY-NMSU,
PCFY-NKMU,PKFY-NHMU,PKFY-NKMU 19.8 2.4
Type 2 PEFY-NMAU 38 1.6
Type 3 PEFY-NMHSU 13.8 4.8
Others Other indoor unit 0 0
C:Multipleoftrippingcurrentattrippingtime0.01s
Pleasepickup"C"fromthetrippingcharacteristicofthebreaker.
Fig. 5-7
CC
CC
C
AB D
~230V
5.2. Power supply wiring
• Installanearthlinelongerthanothercables.
• Powersupplycodesofapplianceshallnotbelighterthandesign245IEC57or
227 IEC 57, 245 IEC 53 or 227 IEC 53.
• Aswitchwithatleast3mm,1/8inchcontactseparationineachpoleshallbe
provided by the air conditioner installation.
[Fig. 5-7]
A
Ground-fault interrupter
B Localswitch/Wiringbreaker
C Indoor unit
D Pull box
RG79F091K01_EN.indd 7 2/23/2016 10:27:11 AM

8
5. Electrical work
Fig. 5-8
TB5 TB15 TB5 TB15
SM1M2 SM1 M2
TB3
M1M2 21 21
TB5 TB5
SM1M2 SM1 M2
TB3
M1M2
TB5
CN90
Pair No.
0
Pair No.
0
9TB15
SM1M2
TB3
M1M2 21
1
2
3
B A A
B A A
C C
B A
C C
D
E
5.4. Connecting remote controller, indoor and out-
door transmission cables (Fig. 5-8)
• ConnectindoorunitTB5andoutdoorunitTB3.(Non-polarized2-wire)
 The“S”onindoorunitTB5isashieldingwireconnection.Forspecicationsabout
the connecting cables, refer to the outdoor unit installation manual.
• Installaremotecontrollerfollowingthemanualsuppliedwiththeremotecontroller.
• Connect the remote controller’s transmission cable within 10 m, 33 ft using a
0.75mm2(AWG18)corecable.Ifthedistanceismorethan10m,33ft,usea1.25
mm2junction cable.
1MA Remote controller
• Connectthe“1”and“2”onindoorunitTB15toaMAremotecontroller.(Non-polarized
2-wire)
• DC9to13Vbetween1and2(MAremotecontroller)
2M-NET Remote controller
• Connectthe“M1”and“M2”onindoorunitTB5toaM-NETremotecontroller.(Non-
polarized 2-wire)
• DC24to30VbetweenM1andM2(M-NETremotecontroller)
3Wireless remote controller(When installing wireless signal receiver)
• Connectthewireofwirelesssignalreceiver(9-polecable)toCN90ofindoorcontrol-
ler board.
• When more than two units are run under group control using wireless remote
controller, connect TB15 each with the same number.
• TochangePairNo.setting,refertoinstallationmanualattachedtowirelessremote
controller. (In the default setting of indoor unit and wireless remote controller, Pair
No.is0.)
ATerminal block for indoor transmission cable
BTerminal block for outdoor transmission cable (M1(A), M2(B), (S))
CRemote controller
DWireless signal receiver
EWireless remote controller
5.5. Setting addresses (Fig. 5-9)
(Be sure to operate with the main power turned OFF.)
• Thereare2typesofrotaryswitchsettingavailable:settingaddresses1to9and
over10,andsettingbranchnumbers.
1How to set addresses
 Example:IfAddressis“3”,remainSW12(forover10)at“0”,andmatch
 SW11(for1to9)with“3”.
2How to set branch numbers SW14 (Series R2 only)
Match the indoor unit’s refrigerant pipe with the BC controller’s end connection
number.
 RemainotherthanseriesR2at“0”.
• Therotaryswitchesareallsetto“0”whenshippedfromthefactory.Theseswitches
can be used to set unit addresses and branch numbers at will.
• Thedeterminationofindoorunitaddressesvarieswiththesystematsite.Setthem
referring to the Data Book.
AAddress board
Fig. 5-9
5.6. Switch setting for high ceiling or at the time of
changing the number of air outlets (Fig. 5-9)
Withthisunit,theairowrateandfanspeedcanbeadjustedbysettingtheSW21
(slide switch). Select a suitable setting from the table below according to the instal-
lation location.
5.7. Sensing room temperature with the built-in sen-
sor in a remote controller (Fig. 5-9)
If you want to sense room temperature with the built-in sensor in a remote control-
ler,setSW1-1onthecontrolboardto“ON”.ThesettingofSW1-7andSW1-8as
necessaryalsomakesitpossibletoadjusttheairowatatimewhentheheating
thermometer is OFF.
A
BRANCH
No.
10s
DIGIT
1s
DIGIT
PLFY-(E)P08-(E)P30NEMU-E PLFY-(E)P36-(E)P48NEMU-E
Silent Standard High ceiling Silent Standard High ceiling
SW21-1 SW21-2 SW21-1 SW21-2 SW21-1 SW21-2 SW21-1 SW21-2 SW21-1 SW21-2 SW21-1 SW21-2
OFF ON OFF OFF ON OFF OFF ON OFF OFF ON OFF
4 direction SW21-3 OFF 2.5m,8.2ft 2.7m,8.9ft 3.5 m, 11.5 ft 2.7m,8.9ft 3.2m,10.5ft 4.5m,14.8ft
SW21-4 ON
3 direction SW21-3 OFF 2.7m,8.9ft 3.0m,9.8ft 3.5 m, 11.5 ft 3.0m,9.8ft 3.6m,11.8ft 4.5m,14.8ft
SW21-4 OFF
2 direction SW21-3 ON 3.0m,9.8ft 3.3m,10.8ft 3.5 m, 11.5 ft 3.3m,10.8ft 4.0m,13.1ft 4.5m,14.8ft
SW21-4 OFF
Note:
MakesuretheSW21switchareset,otherwiseproblemssuchasnotgettingcool/
warm may occur.
RG79F091K01_EN.indd 8 2/23/2016 10:27:11 AM

9
5. Electrical work
5.9. How to set the xed up/down air direction
(Only for wired remote controller)
• Onlytheparticularoutletcanbexedtocertaindirectionwiththepro-
ceduresbelow.Oncexed,onlythesetoutletisxedeverytimeair
conditioneristurnedon.(OtheroutletsfollowUP/DOWNairdirection
setting of the remote controller.)
■Explanation of word
•"RefrigerantaddressNo."and"UnitNo."arethenumbersgivento
each air conditioner.
•"OutletNo."isthenumbergiventoeachoutletofairconditioner.
(Refer to the right.)
• "Up/Downairdirection"isthedirection(angle)tox.
12345
Horizontalairow
Downward
Remote controller setting
Theairowdirectionofthisoutlet
iscontrolledbytheairowdirec-
tion setting of remote controller.
Fixed setting
Theairowdirectionofthisoutletisxed
in particular direction.
* When it is cold because of direct
airow,theairowdirectioncanbexed
horizontallytoavoiddirectairow.
Note:“0”indicatesalloutlets.
Outlet No. 2 Outlet No. 3
Outlet No. 1 Outlet No. 4
MITSUBISHI
ELECTRIC
label
Airoutletidenticationmarks
Note:
The outlet No. is indicated by the number of grooves on both ends of each
air outlet. Set the air direction while checking the information shown on the
remote controller display.
Reset
horizontal
5.8. Electrical characteristics
PLFY-EP·NEMU-E
Model Power supply IFM
Hz Volts Voltagerange MCA (A) Output (kw) FLA (A)
PLFY-EP08,EP12,EP15NEMU-E
60Hz 208/230V 198–253V
0.39 0.050/0.050 0.31
PLFY-EP18NEMU-E 0.43 0.34
PLFY-EP24NEMU-E 0.54
0.120/0.120
0.43
PLFY-EP30NEMU-E 0.57 0.45
PLFY-EP36NEMU-E 0.92 0.73
PLFY-EP48NEMU-E 1.27 1.01
PLFY-P·NEMU-E
Model Power supply IFM
Hz Volts Voltagerange MCA (A) Output (kw) FLA (A)
PLFY-P08NEMU-E
60Hz 208/230V 198–253V
0.31
0.050/0.050
0.25
PLFY-P12NEMU-E 0.33 0.26
PLFY-P15NEMU-E 0.36 0.29
PLFY-P18NEMU-E 0.36 0.29
PLFY-P24NEMU-E 0.51 0.41
PLFY-P30NEMU-E 0.7 0.56
PLFY-P36NEMU-E 1.13 0.120/0.120 0.90
PLFY-P48NEMU-E 1.24 0.99
Symbols:MCA:Min.CircuitAmps(=1.25×FLA)FLA:FullLoadAmps
IFM: Indoor Fan Motor Output: Fan motor rated output
RG79F091K01_EN.indd 9 2/23/2016 10:27:12 AM

10
The current vane setting will appear.
Selectthedesiredoutletsfrom1through4withthe[F1]or[F2]button.
• Outlet:"1","2","3","4",and"1,2,3,4,(alloutlets)"
Pressthe[F3]or[F4]buttontogothroughtheoptionintheorderof"Nosetting(reset)",
"Step1","Step2","Step3","Step4",and"Step5".
Select the desired setting.
■Vanesetting
No setting
Step 3
Draft
reduction*
Step 1
Step 4
All outlets
Step 2
Step 5
* Draft reduction
Theairowdirectionforthissettingismorehorizontalthantheairowdirectionfor
the “Step 1” setting in order to reduce a drafty feeling. The draft reduction can be
set for only 1 vane.
Pressthe[SELECT]buttontosavethesettings.
A screen will appear that indicates the setting information is being transmitted.
The setting changes will be made to the selected outlet.
The screen will automatically return to the one shown above (step 4) when the
transmission is completed.
Make the settings for other outlets, following the same procedures.
■Conrmation procedure
F1 F2 F3 F4
Manual vane angle
Input display:
Cur. Address Check
1
M-NET address
Identify unit Check button
F1 F2 F3 F4
1
Manual vane angle
Input display:
M-NET address
The air conditioner with the
vane pointing downward is
the target air conditioner.
F1 F2 F3 F4
Manual vane angle
Input display:
There is no response from
the target device.
Confirm the state of the air
conditioner.
1Select the "M-NETaddress" forthe
unitstowhosevanesaretobexed,
withthe[F2]or[F3]button.
 Pressthe[F4]buttontoconrmtheunit.
2 After pressing the [F4] button, wait
approximately 15 seconds, and then
check the current state of the air con-
ditioner.
 →Thevaneispointingdownward.→
This air conditioner is displayed on the
remote controller.
 →Alloutletsareclosed.→Pressthe
[RETURN] button and continue the
operation from the beginning.
 →Themessagesshowntotheleftare
displayed. → The target device does
not exist at this refrigerant address.
• Pressthe[RETURN]buttontoreturnto
the initial screen.
3 Change the "M-NET address" to the
next number.
• Refertostep1tochangethe"M-NET
address"andcontinuewiththeconr-
mation.
5. Electrical work
If all outlets are selected, will be displayed the
next time the unit goes into operation.
Navigating through the screens
• TogobacktotheMainmenu..........[MENU]button
• Toreturntothepreviousscreen .....[RETURN]button
F1 F2 F3 F4
Manual vane angle
Manual vane angle
Select:
Setting
Outlet Angle
RG79F091K01_EN.indd 10 2/23/2016 10:27:12 AM

11
6.1. Checking the contents (Fig. 6-1)
• Thiskitcontainsthismanualandthefollowingparts.
Accessory name Q’ty Remarks
1Grille 1950×950(mm),37-3/8×37-3/8(inch)
2Gauge 1Divided into 4 parts
3Screw(4×16) 1ForPLFY-EP·NEMU-E
43D i-see Sensor corner
panel 1ForPLFY-EP·NEMU-E
6.2. Preparing to attach the grille (Fig. 6-2)
• Withthegauge2supplied with this kit, adjust and check the positioning of the unit
relative to the ceiling. If the unit is not properly positioned relative to the ceiling, it
may allow air leaks or cause condensation to collect.
• Makesurethattheopeningintheceilingiswithinthefollowingtolerances:
 860×860-910×910mm,33-7/8×33-7/8to35-13/16×35-13/16inch
• MakesurethatAisperformedwithin17-22mm,11/16-7/8inch.Damagecould
result by failing to adhere to this range.
AMain unit
BCeiling
CGauge 2(inserted into the unit)
DCeiling opening dimensions
6.2.1. Removing the intake grille (Fig. 6-3)
• Slidetheleversinthedirectionindicatedbythearrow1to open the intake grille.
• Unlatchthehookthatsecuresthegrille.
Note:
Do not unlatch the hook for the intake grille.
• Withtheintakegrilleinthe“open”position,removethehingeoftheintakegrille
from the grille as indicated by the arrow 2.
6.2.2. Removing the corner panel (Fig. 6-4)
• Loosenthescrewfromthecornerofthecornerpanel.Slidethecornerpanelas
indicated by the arrow 1to remove the corner panel.
[Fig. 6-3] [Fig. 6-4]
AIntake grille
BGrille
CIntake grille levers
DGrille hook
EHole for the grille’s hook
FCorner panel
GScrew
HDetail
6.3. Selection of the air outlets
For this grille the discharge direction is available in 11 patterns. Also, by setting the
remotecontrollertotheappropriatesettings,youcanadjusttheair-owandspeed.
Select the required settings from the Table 1 according to the location in which you
want to install the unit.
1) Decide on the discharge direction pattern.
2) Be sure to set the remote controller to the appropriate settings according to the
number of air outlets and the height of the ceiling on which the unit will be installed.
Note:
For 3 and 2-directional, please use the air outlet shutter plate (option).
6. Installing the grille
A
D
A=11/16
+3/16
0
B
C
Fig. 6-2
Fig. 6-1
1 2
3 4
Fig. 6-3
Fig. 6-4
C
AB
ED
2
2
FB
F
GHG
4-directional 3-directional
Blowout direction
patterns
1 pattern: initial setting 4 patterns:
one air outlet fully closed
2-directional
Blowout direction
patterns
6 patterns:
2 air outlet fully closed
Table 1
(inch)
RG79F091K01_EN.indd 11 2/23/2016 10:27:13 AM

12
6.4. Installing the grille
6.4.1. Preparations (Fig. 6-5)
Check that the two temporary hanging hooks on the grille are in the raised position.
6.4.2. Temporary installation of the grille (Fig. 6-6)
• Alignthescrewholesinthecornersofthegrillewiththescrewmountingholesin
the corners of the main unit, latch the two hooks on the grille onto the drain pan
projections on the main unit, and temporarily hang the grille.
6.4.3. Securing the grille
• Securethegrillebytighteningthefourscrews.(Fig.6-6)
Note:
Make sure that there are no gaps between the main unit and the panel or the panel
and the ceiling. (Fig. 6-7)
Fixing gaps between the grille and the ceiling
With the grille attached, adjust the height of the main unit to close the gap.
Caution:
• When tightening the screw with captive washer C, tighten it within a tightening
torque range of 2.8–3.6 N•m, 2.1–2.6 ft•lbs. Never use an impact screwdriver.
It may result in parts damage.
• After tightening the screw, conrm that the two grille hooks (Fig. 6-6) are
latched onto the hooks on the main unit.
6.4.4. Wire connection (Fig. 6-8)
• Loosenthe2screwsxingtheelectricalboxcoverofthemainunit,andthen
open the cover.
• Besuretoconnecttheconnector(white,20-pole)forvanemotorofthegrilleto
CNVconnectorofcontrollerboardofthemainunit.
• Theremainingleadwireisputwithclampintheelectricalboxofthemainunit.
• Theelectricalboxcoverofthemainunitisclosedagainwith2screws.
6. Installing the grille
Fig. 6-5
<Hookisintheloweredposition><Hookisintheraisedposition>
Fig. 6-7
Fig. 6-6
F
E
D
A
B
C
C
E
G
E
A
B
C
D
ACeiling
BMain unit
CGrille
DMake sure that there are no gaps.
EAdjust the nut of the main unit using a
wrench, etc.
AMain unit
BCorner drain pipe area
CMain unit hook
DGrille
EDrain socket hole
FTemporary hanging hooks on the panel
<Grillhook>
Fig. 6-8
C
BA
D
AClamp of the main unit
BElectrical box
CLead wire of grille
DCNVconnector
RG79F091K01_EN.indd 12 2/23/2016 10:27:15 AM

13
Fig. 6-10
Fig. 6-12
Fig. 6-11
6. Installing the grille
A
B
C
F
E
G
D
6.5. Installation of 3D i-see Sensor corner panel (Fig.
6-9)
6.5.1. Standard position (Fig. 6-10) and position 2(Fig. 6-11)
• TaketheleadwiresCN4Z(white,4-pole)andCN5Y(white,5-pole)ofthe3Di-see
Sensor corner panel 4 from the side of the electrical box on the unit and make
sure to connect them to the connector of the controller board.
• Fixtheexcessportionsoftheleadwiresusingtheclampintheelectricalbox,mak-
ing sure that there is no slack in the lead wires.
• Putthecoverbackontheelectricalboxwith2screws.
Note:
Make sure wires are not caught in the electrical box cover.
• Adverseprocedureof“6.2.Preparingtoattachthegrille”willbetakenforinstalling
the 3D i-see Sensor corner panel.
• The3Di-seeSensorcornerpanelshouldbexedontothegrille1with screw 3.
6.5.2. Position 1(Fig. 6-12)
• TaketheleadwiresCN4Z(white,4-pole)andCN5Y(white,5-pole)ofthe3Di-see
Sensor corner panel 4 from the side of the electrical box on the unit and make
sure to connect them to the connector of the controller board.
• Routetheleadwiresthroughthebellmouthhooksandxtheexcessportionsof
the lead wires using the clamp in the electrical box, making sure that there is no
slack in the lead wires.
• Putthecoverbackontheelectricalboxwith3screws.
Note:
Make sure wires are not caught in the electrical box cover.
* Adverse procedure of “6.2. Preparing to attach the grille” will be taken for installing
the 3D i-see Sensor corner panel.
• The3Di-seeSensorcornerpanelshouldbexedontothegrille1with screw 3.
[Fig.6-10][Fig.6-11][Fig.6-12]
AControllerboardCN4Z
BControllerboardCN5Y
C3D i-See sensor corner panel lead wire
DClamp of electrical box
EHole of grille (Pass the lead wire.)
FScrew 3
G3D i-see Sensor corner panel
HCatch of bell mouth
F
ED
C
H
G
A
B
B
DF
C
A
E
G
Fig. 6-9
3D i-see Sensor corner panel
Possible installation position 1
(Cornerwiththeairoutletidenticationmarks□/□□□□)
3D i-see Sensor corner panel
Possible installation position 2
(Cornerwiththeairoutletidenticationmarks□/□□)
3D i-see Sensor corner panel
Standard installation position (position when
shipped from the factory)
Refrigerant piping of the main unit
3D i-see Sensor corner panel
Optional wireless signal receiver kit
Prohibited installation position
Drain piping of the main unit
RG79F091K01_EN.indd 13 2/23/2016 10:27:20 AM

14
6.6. Installing the intake grille (Fig. 6-13)
Note:
When reinstalling the corner panels (each with a safety wire attached), con-
nect the other end of each safety wire to the grille as shown in the illustration.
Note:
If the corner panels are not attached, they may fall off while the unit is operating.
• Performtheprocedurethatisdescribedin“6.2.Preparingtoattachthegrille”in
reverse order to install the intake grille and the corner panel.
• Multipleunitscanbeinstalledwithgrillesothatthepositionofthelogooneach
corner panel is consistent with the other units regardless of the orientation of the
intake grille. Align the logo on the panel according to the wishes of the customer
as shown in the diagram to the left. (The position of the grille can be changed.)
AScrew
BCorner panel
CSafety wire
DHook
ERefrigerant piping of the main unit
FDrain piping of the main unit
GMITSUBISHI ELECTRIC label
• Installationinanypositionispossible.
HInitial position of the levers on the intake grille
• Althoughtheclipscanbeinstalledinanyof4positions,thecongurationshown
here is recommended. (It is not necessary to remove the intake grille when
maintenance is performed on the electrical box of the main unit.)
IReceiver
J3D i-see Sensor
Fig. 6-13
A
D
C
B
I
H
FG
J
E
6. Installing the grille
3D i-see Sensor setting and ceiling height setting when the 3D i-see Sensor corner panel position is changed
Settheswitches(SW3-3,3-4,3-9,and3-10)onthecontrolboardofeachindoorunitaccordingtothetablebelow.
Mode Setting SW3-3 SW3-4 Initial setting Check* Remarks
3D i-see Sensor
positioning
Position 1OFF OFF Cornerwith the air outlet identication
marks□/□□□□
Position 2ON OFF Cornerwith the air outlet identication
marks□/□□
Standard OFF ON ○Cornerwith the air outlet identication
marks□□/□□□
Mode Setting SW3-9 SW3-10 Initial setting Check* Remarks
3D i-see Sensor ceil-
ing height setting
Low ceiling OFF OFF Ceiling height: less than 2.7 m
Standard ON OFF ○Ceilingheight:2.7–3.5m
High ceiling OFF ON Ceiling height: 3.5 m or more
*Wheneverthefunctionselectionisusedtochangetheindoorunitfunctionsafterinstallation,besuretorecordallofthesettingswitha“○”orothermarkinthe“Check”
column of the tables above.
RG79F091K01_EN.indd 14 2/23/2016 10:27:21 AM

15
7. Test run
7.2. Test run
The following 2 methods are available.
7.2.1. Using wired MA remote controller (Fig. 7-1)
Function buttons
4 3 2 1
5
6
7 8 9 0
▌1[ON/OFF] button
PresstoturnON/OFFtheindoorunit.
▌2[SELECT] button
Press to save the setting.
▌3[RETURN] button
Press to return to the previous screen.
▌4[MENU] button
Press to bring up the Main menu.
▌5Backlit LCD
Operation settings will appear.
When the backlight is off, pressing any button turns the backlight on and it will
stay lit for a certain period of time depending on the screen.
When the backlight is off, pressing any button turns the backlight on and does
notperformitsfunction.(exceptforthe[ON/OFF]button)
▌6ON/OFF lamp
This lamp lights up in green while the unit is in operation. It blinks while the
remote controller is starting up or when there is an error.
▌7Function button [F1]
Main display: Press to change the operation mode.
Main menu: Press to move the cursor down.
▌8Function button [F2]
Main display: Press to decrease temperature.
Main menu: Press to move the cursor up.
▌9Function button [F3]
Main display: Press to increase temperature.
Main menu: Press to go to the previous page.
▌0Function button [F4]
Main display: Press to change the fan speed.
Main menu: Press to go to the next page.
Controller interface
Fig. 7-1
► Do not carry out this test on the control wiring (low voltage circuit) terminals.
Warning:
Do not use the air conditioner if the insulation resistance is less than 1.0 MΩ.
7.1. Before test run
► After completing installation and the wiring and piping of the indoor and
outdoor units, check for refrigerant leakage, looseness in the power supply
or control wiring, wrong polarity, and no disconnection of 1 phase in the
supply.
► Use a 500-volt megohmmeter to check that the resistance between the power
supply terminals and ground is at least 1.0 MΩ.
RG79F091K01_EN.indd 15 2/23/2016 10:27:21 AM

16
7. Test run
Step 1 Switch the remote controller to “Test run”.
1Select “Service” from the Main menu, and press the button.
2When the Service menu is selected, a window will appear asking for the password. (Fig. 7-2)
To enter the current maintenance password (4 numerical digits), move the cursor to the digit you want to change with the F1 or F2 button, and set each number
(0through9)withthe F3 or F4 button. Then, press the button.
Note: Theinitialmaintenancepasswordis“9999”.Changethedefaultpasswordasnecessarytopreventunauthorizedaccess.
Have the password available for those who need it.
Note: Ifyouforgetyourmaintenancepassword,youcaninitializethepasswordtothedefaultpassword“9999”bypressingandholdingthe F1 and F2 buttons
simultaneously for three seconds on the maintenance password setting screen.
3Select “Test run” with the F1 or F2 button, and press the button. (Fig. 7-3)
4Select “Test run” with the F1 or F2 button, and press the button. (Fig. 7-4)
F1 F2 F3 F4
unemecivreS
rosruC
:unemniaM
Test run
Input maintenance info.
Function setting
Check
Self check
F1 F2 F3 F4
Test run menu
Cursor
Service menu:
Test run
Drain pump test run
Fig. 7-4
F1 F2 F3 F4
Service menu
Cursor
Select:
Enter maintenance password
Fig. 7-3
Fig. 7-2
F1 F2 F3 F4
Cool
Pipe
Auto
Switch disp.
Mode Fan
RemainTest run
Fig. 7-5
F1 F2 F3 F4
Remain
Vane
Fig. 7-6
Step 2 Perform the test run and check the airow temperature and auto vane.
1Press the F1 button to go through the operation modes in the order of “Cool”
and “Heat”. (Fig. 7-5)
Cool mode: Check the cold air blow off.
Heat mode: Check the heat blow off.
Note:
Check the operation of the outdoor unit’s fan.
2Press the buttonandopentheVanesettingscreen.
AUTO vane check
1Check the auto vane with the F1 F2 buttons. (Fig. 7-6)
2Press the button to return to “Test run operation”.
3Press the button.
Fig. 7-7
7.2.2. Test run
Using Simple MA remote controller (Fig. 7-7)
1 Before making a test run, refer to the “Test Run” section of the indoor unit instal-
lation manual.
2 Whenthe[ON/OFF]buttonand[TEMP. ]buttonarepressedsimultaneouslyfor
2 seconds or longer, test run is performed.
3 Stopthetestrunbypressingthe[ON/OFF]button.
4 If an error code is displayed on the remote controller or if the air conditioner does
not operate properly, refer to the outdoor unit installation manual or other technical
materials.
.
ON/OFFlamp
The lamp will light up in green
when turned on, and blink during
startup and when an error occurs.
Backlit LCD
button
button
TEMP.
MODE
button
ON/OFF
Pressing this button starts and
stops the operation.
button
FAN
button
VANE
COOL
VENTI.
Indoor unit piping temperature
Displayrange:-4ºF(-20ºC)to158ºF
(70ºC)
“-4ºF”or“158ºF”flashesonthe
display.
Test run time
The remaining time for test run
is displayed.
Displayrange:2:00to0:01
After two hours, the test run
stops automatically.
RG79F091K01_EN.indd 16 2/23/2016 10:27:22 AM

17
7. Test run
Fig. 7-8
7.3. Check of drainage (Fig. 7-8)
• Ensurethatthewaterisbeingproperlydrainedoutandthatnowaterisleaking
from joints.
When electric work is completed.
• Pourwaterduringcoolingoperationandcheck.
When electric work is not completed.
• Pourwaterduringemergencyoperationandcheck.
• Drainpanandfanareactivatedsimultaneouslywhensinglephase208/230Vis
turned on to L1 and L2 on terminal block after the connecter (SWE) on controller
board in the electrical branch box is set to ON.
Be sure to turn it back to the former state after work.
AWater supply pump
B Water(about1000cc)
CDrain plug
DPour water through outlet
• Becarefulnottospraywaterintothe
drain pump mechanism.
B
A
C
D
RG79F091K01_EN.indd 17 2/23/2016 10:27:22 AM

18
 -

L’appareil intérieur doit être livré avec les accessoires suivants :
Nom de l’accessoire Qté
1Schéma d’installation 1
2Rondelles (avec isolation)
Rondelles (sans isolation)
4
4
3
Cache-tuyaux (pour le raccord des tuyaux de réfrigérant)
petit diamètre
grand diamètre
1
1
4Courroie (grands)
Courroie (petits)
6
2
5Prise d’écoulement 1
6Isolation 1
 

 -

 
 





Une fois l’installation terminée, expliquer les “Consignes de sécurité”, l’utilisation
et l’entretien de l’appareil au client conformément aux informations du mode
d’emploi et effectuer l’essai de fonctionnement en continu pour garantir un fonction-
nement normal. Le manuel d’installation et le mode d’emploi doivent être fournis à
l’utilisateur qui doit les conserver. Ces manuels doivent également être transmis
aux nouveaux utilisateurs.
: Indique une action qui doit être évitée.
: Indique que des instructions importantes doivent être prises en considération.
: Indique un élément qui doit être mis à la terre.
: Indique des précautions à prendre lors du maniement de pièces tournantes.
: Indique que l’interrupteur principal doit être désactivé avant d’effectuer tout travail d’entretien.
: Danger d’électrocution.
: Attention, surface chaude.
: Lors de travaux d’entretien, coupez l’alimentation de l’appareil intérieur
ainsi que de l’appareil extérieur.




   




 
 
    -

 


 -





 
-

 






       




 

 


  -

 
 
 
 

 
 
 

 

 




1. Consignes de sécurité.............................................................................18
2. Installation de l’appareil intérieur.............................................................18
3. Installation de la tuyauterie du réfrigérant ...............................................20
4. Mise en place du tuyau d’écoulement.....................................................21
5. Installations électriques...........................................................................22
6. Installer la grille .......................................................................................27
7. Marche d’essai ........................................................................................31
1 2
3 4
5 6

RG79F091K01_FR.indd 18 2/23/2016 10:27:47 AM


 
 


I


• Utiliserleschémad’installation(danslehautducolis)etlegabarit(fournicomme
accessoire avec la grille) pour créer une ouverture dans le plafond de sorte à
pouvoir installer l’appareil principal comme illustré sur le schéma. (Les méthodes
d’utilisationduschémaetdugabaritsontindiquéeségalement.)
* Avanttouteutilisation,vérierlesdimensionsduschémaetdugabaritcar
celles-ci peuvent changer en fonction de la température et de l’humidité.
* Lesdimensionsdel’ouverturedansleplafondpeuventêtredéniesausein
de la plage indiquée dans la Fig.2-2 ; centrer l’appareil principal par rapport
à l’ouverture dans le plafond, en veillant à la symétrie de chaque côté par
rapportàl’orice.
• UtiliserdesboulonsdesuspensionM10(3/8˝).
* L’acquisitiondesboulonsdesuspensiondoitsefairelocalement.
• Installerl’appareildemanièresûre,enveillantàcequ’iln’yaitpasdevideentre
le panneau du plafond et la grille ni entre l’appareil principal et la grille.
APartie extérieure de l’appareil principal EGrille
BEcartemententrelesboulons FPlafond
COuverture dans le plafond GBoîtier multifonctions (optionnel)
DPartie extérieure de la grille HToute la périphérie
* Nepasoublierquel’espacelaisséentrelepanneaudel’appareilcôtéplafondet
lepandeplafond,etc.doitêtrede10à15mm,25/64à19/32pouces.
* Lorsdel’installation du boîtier multifonctionsdisponibleenoption, ajouter
135mm,5-5/16poucesauxdimensionsindiquéesdanslagure.
(mm, pouces)
Modèles A B
EP08-18
P08-30 241,9-1/2 258,10-3/16
EP24-48
P36-48 281,11-1/16 298,11-3/4
 -

Les chiffres marqués d’une * sur le croquis représentent les dimensions de l’appareil
principalsanstenircomptedecellesduboîtiermultifonctionsdisponibleenoption.
(Fig. 2-3)
ATuyau d’évacuation
BPlafond
CGrille
DTuyau de réfrigérant (liquide)
ETuyau de réfrigérant (gaz)
FAppareil principal
* Lorsdel’installationd’unboîtiermultifonctionsdisponibleenoption,ajouter135mm,
5-5/16poucesauxdimensionsindiquéessurlecroquis.
 -

• Lestravauxàeffectuerauplafondvarientenfonctiondutyped’édice.Ilconvient
deconsulterlesconstructeursetlesdécorateursdubâtimentpourplusdedétails.
(1) Etendue de la découpe dans le plafond : Le plafond doit être parfaitement à
l’horizontaleetsesfondations(encadrement:linteauxdeboisousupportsde
linteaux)doiventêtrerenforcéesand’éviterqu’ilnevibre.
(2) Découper et déposer les fondations du plafond.
(3)
Renforcerlesextrémitésdelafondationduplafondàl’endroitdeladécoupeetajou-
ter une fondation de renfort pour assurer les extrémités des traverses du plafond.
(4) Lors de l’installation de l’appareil sur un plafond incliné, installer une réglette de mise
à niveau entre le plafond et la grille de telle sorte que l’appareil soit à l’horizontale.
1Structuresenbois
• Utiliserlestirants(pourlesmaisonsdeplain-pied)oulespoutresdel’étage(pour
les maisons à étage) comme renforts.
•
Lespoutresenboisdevantserviràsoutenirlesclimatiseursdoiventêtrerobustes
etleurscôtésdoiventavoiraumoins60mm,2-3/8poucesdelongsilespoutres
sontséparéesd’unintervalledemaximum900mm,35-7/16poucesouilsdoivent
avoir90mm,3-9/16poucesdelongsilespoutressontséparéesparunintervalle
allantjusqu’à1800mm,70-7/18pouces.Lesboulonsdesuspensiondoiventavoir
10mmdediamètre(3/8˝).(Cesboulonsnesontpaslivrésavecl’appareil.)
2Structuresenbétonarmé
Fixerlesboulonsdesuspensionàl’aidedelaméthodeillustréeouutiliserdes
chevillesenacierouenbois,etc.pourinstallerlesboulonsdesuspension.
(pouces)
Modèles C D
(E)P08-18 3 3-1/32
(E)P24-48 3-1/32


5-11/16
31-5/16 B
37-3/8 D
5-11/16
25-31/32 B
(25/32) (25/32)
33-1/16 A
37-3/8 D
7-19/32
8-3/4
5-7/32
3-1/8
5-11/16
5-11/16
F
E
G
5-5/16
11/16+3/16
0
* B
A
F
E
11/16
1-9/16
+3/16
0
*
4-1/8
H
*5-17/32
*6-11/16
3-1/8
7-1/2 1/4
D
C
2-3/8 14-1/16 10-11/16
D
E
F
B
A
C
Sol
Min.19-11/16
Min.94-1/2
*1-31/32
à2-3/4
23-13/16
31-7/8
A
B
1 2
HI
J
C
D E FG

32-27/32à35-13/16C
25/32à1-25/32
25/32à
1-25/32
25/32à1-25/32
25/32à
1-25/32 32-27/32à35-13/16C
(pouces)
AAppareil principal
BGrille
CRéglette de mise à niveau
DPlafond
EChevron
FPoutre
GPoutre du toit
HUtiliser des chevilles prévues pour
100 à 150 kg, 221 à 331 livres chacune
(non fournies)
IBoulonsdesuspensionM10(3/8˝)
JTige de renfort en acier
(pouces)
RG79F091K01_FR.indd 19 2/23/2016 10:27:48 AM


ABoulon de suspension
BPlafond
CEcrou
DRondelle (avec isolant)
EPlaque de montage
FRondelle (sans isolant)
GVérieràl’aideduschémad’installation
AAppareil principal
BPlafond
CSchéma d’installation (haut du colis)
AAppareil principal
BPlafond
CJauge
DDimensions de l’ouverture dans le plafond


 
 
Suspendre l’appareil principal comme indiqué sur le diagramme.
Les chiffres fournis entre parenthèses représentent les dimensions nécessaires en
casd’installationd’unboîtiermultifonctionsenoption.
1. Poseràl’avancelesélémentssurlesboulonsdesuspensiondansl’ordreron-
delles(avecisolant),rondelles(sansisolant)etécrous(double).
• Placerlarondelleavecisolantdetellesortequelapartieisolantesoittournée
verslebas.
• Encasd’utilisationderondellessupérieurespoursuspendrel’appareilprincipal,
lesrondellesinférieures(avecisolant)etlesécrous(doubles)doiventêtreins-
tallés postérieurement.
2. Leverl’appareil àlahauteur adéquatedes boulonsde suspensionpour intro-
duirelaplaquedemontageentrelesrondellesetlaserrerconvenablement.
3.
Lorsquel’appareilprincipalnepeutpasêtrealignécontrel’oricedemontageau
plafond,ilestpossibledeleréglerparunefenteprévuesurlaplaquedemontage.
• S’assurerquelepointAs’effectuedansunefourchetteallantde17à22mm,
11/16à 7/8pouce.Lenonrespectdecettemargepourraitêtreàl’originedecer-
tainsdégâts.(Fig.2-6)



  

 

• Al’aidedugabaritxéàlagrille,s’assurerquelebasdel’appareilestalignépar
rapportà l’ouverture dansle plafond. Veiller à bienvérier ce pointsinon des
gouttesdecondensationduesauxfuitesd’air,etc.risquentdetomber.
• A l’aide d’un niveau ou d’un tube en vinyle rempli d’eau, vérier que l’appareil
principalsoitbienàl’horizontale.
• Lorsquelabonnepositiondel’appareilprincipalestdénieaveccertitude,serrer
convenablementlesécrousdesboulonsdesuspensionpourlexer.
• Leschémad’installation(danslehautducolis)peutservirdefeuilleprotectrice
pour empêcher la poussière de pénétrer à l’intérieur de l’appareil lorsque les
grilles doivent rester enlevées pendant un certain temps ou si le recouvrement
du plafond doit être remis en place ou ré-égalisé après l’installation de l’appareil.
Remarque :
Pour plus de détails concernant le montage, veuillez vous reporter aux instructions
du schéma d’installation. (haut du colis)
 
 
• Encasd’utilisationdetuyauxencuivredisponiblessurlemarché,envelopperles
tuyaux de liquide et de gaz avec de la matière isolante vendue dans le com-
merce sur le marché (résistant à une chaleur de 100 °C, 212 °F ou supérieure et
d’uneépaisseurde12mm,1/2pouceouplus).
• Appliquerunlmminced’huileréfrigérantesurlasurfacedutuyauetdusupport
dujointavantdeserrerl’écrouévasé.
• Utiliserdeuxcléspourserrerlesconnexionsdestuyaux.
• Utiliserlamatièreisolantedestuyauxderéfrigérantfournieand’envelopperles
connexions des appareils intérieurs. Effectuer l’isolation avec soin.
• Aprèsleraccordementdutuyauderéfrigérantàl’appareilintérieur,vériertoutes
les connexions et s’assurer qu’il n’y a pas de fuite de gaz en envoyant de l’azote
àl’étatgazeuxdanslestuyaux(Vérierqu’iln’yapasdefuitederéfrigérantau
niveau du tuyau de réfrigérant connecté à l’appareil intérieur.).
• Utilisezl’écrouévasémontésurcetappareilintérieur.
• Encasdereposedestuyauxderéfrigérantaprèsdémontage,refaiteslapartie
évasée du tuyau.
(pouces)
BDiamètres des tuyaux de réfrigérant & couple de serrage des raccords coniques
CAppliquer de l’huile réfrigérante sur toute la surface évasée du fond.
Tuyau à liquid Tuyau à gaz Diam. ext. raccord conique
Diamètre du
tuyau (mm)
(pouce)
Couple de
serraga (N.m)
(pieds, livres)
Diamètre du
tuyau (mm)
(pouce)
Couple de
serraga (N.m)
(pieds, livres)
Tuyau à liquid
(mm)
(pouce)
Tuyau à gaz
(mm)
(pouce)
(E)P08, (E)P12, (E)P15, (E)P18 ODø6,35
1/4
14 - 18
10 - 13
ODø12,7
1/2
49-61
35 - 44
17
43/64
26
1-1/32
(E)P24, (E)P30, (E)P36, (E)P48 ODø9,52
3/8
34 - 42
25 - 30
ODø15,88
5/8
68 - 82
49-59
22
7/8
29
1-9/64

A B
C
D
A
R1/64–R1/32
45°± 2°
90°±0.5°
ADimension de l’évasement
Diam. ext. Tuyau en
cuivre (mm, pouce)
Dimensions évasement
Dimensions øA (mm, pouce)
ø6,35,1/4 8,7-9,1,11/32-23/64
ø9,52,3/8 12,8-13,2,1/2-33/64
ø12,7,1/2 16,2-16,6,41/64-21/32
ø15,88,5/8 19,3-19,7,49/54-25/32
ø19,05,3/4 22,9-23,3,15/16-61/64
A=11/16
+3/10 0
11/16
4-1/8 (9-7/16)
+8/16 0
A
B
AA
C
D
D
E
F
C
C
G
B
B
Min.1-3/16

A
C
B
RG79F091K01_FR.indd 20 2/23/2016 10:27:48 AM